A Tour of Go For

Go has only one looping construct, the for loop.

The basic for loop looks as it does in C or Java, except that the ( ) are gone (they are not even optional) and the { } are required.

package main 

import "fmt"

func main() {
    sum :=
    for i := ; i < ; i++ {
        sum += i
    }
    fmt.Println(sum)
}